Background: Thrombocytopenia has been reported to be associated with efalizumab therapy, but has only sporadically been reported with other anti-tumor necrosis factor alfa (TNF-alpha) agents. Objective: To describe the frequency of thrombocytopenia in a cohort of patients who underwent biological therapies for psoriasis. Methods. This was a retrospective observational study of 93 patients. Results: One hundred eighteen Courses of biological therapies were administered to 93 patients. Four of 67 patients who received anti-TNF-alpha agents developed drug-induced thrombocytopenia during treatment, compared with none of the 51 patients receiving efalizumab therapy. The platelet count recovered after Suspension of anti-TNF-alpha agents in 3 patients and relapsed after re-exposure in two patients. The overall estimated frequency of thrombocytopenia in our cohort was 4.30% (95% confidence interval [CI], 0% to 6.2%). Limitations: These findings should be validated in larger studies. Conclusions: Drug-induced thrombocytopenia is a potential side effect of anti-TNF-alpha agents. Immediate monitoring Of Platelet Counts is recommended if autoimmunity is suspected. (J Am Acad Dermatol 2009;60:781-5.)
机构:
Univ New S Wales, St Vincents Hosp, Dept Clin Pharmacol & Toxicol, Sydney, NSW 2010, AustraliaUniv New S Wales, St Vincents Hosp, Dept Clin Pharmacol & Toxicol, Sydney, NSW 2010, Australia
机构:
Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, GreecePapageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Lazaraki, Georgia
;
Metallidis, Simeon
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机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Metallidis, Simeon
;
Giannoulis, Kleanthis
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机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Giannoulis, Kleanthis
;
Tarpagos, Anestis
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机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Tarpagos, Anestis
;
Germanidis, Georgios
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机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
机构:
Univ New S Wales, St Vincents Hosp, Dept Clin Pharmacol & Toxicol, Sydney, NSW 2010, AustraliaUniv New S Wales, St Vincents Hosp, Dept Clin Pharmacol & Toxicol, Sydney, NSW 2010, Australia
机构:
Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, GreecePapageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Lazaraki, Georgia
;
Metallidis, Simeon
论文数: 0引用数: 0
h-index: 0
机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Metallidis, Simeon
;
Giannoulis, Kleanthis
论文数: 0引用数: 0
h-index: 0
机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Giannoulis, Kleanthis
;
Tarpagos, Anestis
论文数: 0引用数: 0
h-index: 0
机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece
Tarpagos, Anestis
;
Germanidis, Georgios
论文数: 0引用数: 0
h-index: 0
机构:Papageorgiou Gen Hosp, Dept Internal Med 1, Endoscopy Unit, Thessaloniki, Greece